21208044

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:775

約数の個数: 96

約数和(自身を含む): 61641216

約数和(自身を除く): 40433172

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 17, 22, 26, 33, 34, 39, 44, 51, 52, 66, 68, 78, 102, 132, 143, 156, 187, 204, 221, 286, 374, 429, 442, 561, 572, 663, 727, 748, 858, 884, 1122, 1326, 1454, 1716, 2181, 2244, 2431, 2652, 2908, 4362, 4862, 7293, 7997, 8724, 9451, 9724, 12359, 14586, 15994, 18902, 23991, 24718, 28353, 29172, 31988, 37077, 37804, 47982, 49436, 56706, 74154, 95964, 103961, 113412, 135949, 148308, 160667, 207922, 271898, 311883, 321334, 407847, 415844, 482001, 543796, 623766, 642668, 815694, 964002, 1247532, 1631388, 1767337, 1928004, 3534674, 5302011, 7069348, 10604022, 21208044]

約数ペア:

[(1, 21208044), (2, 10604022), (3, 7069348), (4, 5302011), (6, 3534674), (11, 1928004), (12, 1767337), (13, 1631388), (17, 1247532), (22, 964002), (26, 815694), (33, 642668), (34, 623766), (39, 543796), (44, 482001), (51, 415844), (52, 407847), (66, 321334), (68, 311883), (78, 271898), (102, 207922), (132, 160667), (143, 148308), (156, 135949), (187, 113412), (204, 103961), (221, 95964), (286, 74154), (374, 56706), (429, 49436), (442, 47982), (561, 37804), (572, 37077), (663, 31988), (727, 29172), (748, 28353), (858, 24718), (884, 23991), (1122, 18902), (1326, 15994), (1454, 14586), (1716, 12359), (2181, 9724), (2244, 9451), (2431, 8724), (2652, 7997), (2908, 7293), (4362, 4862)]